function domainType(domains) {
    //  write code here.
    let domainArray = [];
    let domainTypes = [];
    
    domains.forEach(array => {
        let newArray = array.split(".");
        domainArray.push(newArray[newArray.length - 1]);
    });
    
    domainArray.forEach(item => {
        if (item === "org") {
            domainTypes.push("organization");
        } else if (item === "com") {
            domainTypes.push("commercial");
        } else if (item === "net") {
            domainTypes.push("network");
        } else if (item === "info") {
            domainTypes.push("information");
        }
    });
    
    return domainTypes;
}



/**
* Test Suite 
*/
describe('domainType()', () => {
    it('returns list of domain types', () => {
        // arrange
        const domains = ["en.wiki.org", "codefights.com", "happy.net", "code.info"];
        
        // act
        const result = domainType(domains);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toEqual(["organization", "commercial", "network", "information"]);
    });
});